NS_WARNING
syntax ns_warning("warning text"); ...

Index
148 ns_if_addref xpcom, xpcom_macros macro 149 ns_if_release xpcom, xpcom_macros macro 150 ns_release xpcom, xpcom_macros macro 151 ns_warning xpcom, xpcom_macros macro 152 standard xpcom components components, landing, mozilla, needscontent, xpcom there are a number of components provided in the standard implementation of xpcom; these are as follows.
... 537 nsidebug interfaces, interfaces:scriptable, xpcom, xpcom interface reference note: c/c++ consumers who are planning to use the nsidebug interface with the @mozilla.org/xpcom;1 contract should use ns_debugbreak() from xpcom glue instead, or alternatively the ns_abort, ns_assertion, ns_break, and ns_warning macros, which also call ns_debugbreak() if used in a debugging build.

nsIDebug
inherits from: nsisupports last changed in gecko 1.7 note: c/c++ consumers who are planning to use the nsidebug interface with the @mozilla.org/xpcom;1 contract should use ns_debugbreak() from xpcom glue instead, or alternatively the ns_abort, ns_assertion, ns_break, and ns_warning macros, which also call ns_debugbreak() if used in a debugging build.

NS_ENSURE_ARG_POINTER
summary macro returns ns_error_invalid_pointer if the macro argument evaluates to false and shows a warning (ns_warning) in this case.

XPCOM reference
this macro is meant for critical errors; like assertions, ns_errors should not be reachable.ns_if_addrefmacrons_if_releasemacrons_releasemacrons_warningmacronsgetmoduleprocthis function prototype provides the xpcom entry-point into a module.nsiabcard/thunderbird3the nsiabcard interface is used to represent and manipulate cards in the address book.